CSS Help

Hi,
Please forgive my direct approach requesting help.
I am new to WordPress and have tried to solve my problem.
[ redundant link removed ]
I have installed a free gallery.
I want to resize the picture and buttons to make them smaller on the page so it fits in the middle of the screen on all devices.
I don’t want to scroll down for the navigation buttons.
When i resize I can’t get it to stay in the middle.
I am sure very simple for someone who knows what they are doing but I have been trying with my limited CSS knowlodge.
I don’t like asking for free help but if anybody knows a quick solution I would very much appreciate it.
Thank you

• This topic was modified 7 years, 4 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not an Everything else WordPress topic

The page I need help with: [log in to see the link]